Watts cooke and daniel caelough



(No Model.) i

. W. GOOKE & DLCARLOUGH.

MACHINE FOR UPSBTTING BYE BARS. No. 345,573. Patented July 13, 1886.

' N PETERS. ncw-ulmmmr. Wzl-hinginn. mc.

NITED STATES PATENT OFFicE.

WATTS OOOKE AND DANIEL CARLOUGH, OF PATERSON, NFNV JERSEY.

MACHINE FO'R UPSETTING EYE-BARS.

SPECIFICATION forming part of Letters Patent No; 34 5,573, dated July13, 1886.

Application filed December 19, 1885. Serial No. 186,117. (No model.)

I To all whom it may concern:

Be it known that we, WATTS Cooke. and DANIEL GARLOUGI-I, both ofPaterson, Passaie county, in the State of New Jersey, have invented acertain new'and useful Improvement in Machines for Upsetting Eye-Bars,of which the following is a specification.

The improved machine is of the general construction set forth in thepatent to us dated October 13, 1885, No. 328,290. WVe haveimproved onthat machine, so as to overcome a diificulty. In that machine the eyewas,in the act of being upset, increased not only in width, but also inthickness.- The increased thickness was afterward reduced by hammering.Our improved machine does the same.

When a bar is firmly-held by its main body, and an end is heated so asto be very soft, and is compressed endwise by any suitable force toupset it, it will in a majority of cases broaden and thicken without anyspecial means for holding it straight. The simple surrounding it by astrong metallic casing, with its inner surfaces properly placed to shapethe resulting eye, is usually sufficient to produce a perfeetcorresponding form; but in exceptional cases the metal, instead of thusupsetting in a straight or nearly straight condition, will.

cramp or double to the right or to the left. Our invention is of servicein preventing such cramping.

We have discovered that the portion of the bar which is to be upset maybe usefully and effectually steadied against lateral deflection, and itsstraight and uniform upsettinginsured, by presenting a longitudinalridge on the broad top face of the box orinclosing-casing in which theupsetting is conducted, and another such ridge on the correspondingbottom face. Such ridges produce grooves extending longitudinally of theeye; but this is only a temporary result. The hammering to which thethickened eye is subjected immediately on its removal from the machinesinks the broad faces and thins the eye until the grooves are entirelyobliterated. Instead of having a longitudinal ridge on the interior ofthe die on each face, there may be such a ridge on one face alone, andthe other face may be left plane. In such case the upset eye will show alongitudinal groove on one face and none on the other. We

prefer to provide both the interior faces of the inclosing-box with theproper longitudinal ridges, and thus to priuta longitudinal groove ineach face of the thickened and widened end of the bar. It will beunderstood that when the eye-bar, having its ends thus upset andfinished, is to be used in a bridge or other structure a hole of theproper diameter is smoothly bored in the center of the eye or widenedportion at each end. The eye, on receiving a proper transverse pin insuch hole, is firmly engaged with the other parts of the bridge or otherstructure. We make the ridges of such moderate depth and breadth thatthey do not imprint the eye until the upsetting has commenced to thickenthe metal of that portion. So soon as this is experienced the thickeningeye commences to take the impression of the ridge or ridges, and theentire metal is thereafter guided by such ridge or ridges. The inventionpractically insures that the metal of the eyes in any number of bars maywith proper care be upset in astraight condition.

The accompanying drawings form a part of this specification, andrepresent what we consider the best means of carrying out the invention.

Figure 1 is a plan view with the cover removed. In this view the deviceis in the condition for receiving the bar to be treated. Fig.

sponding section showing the parts after the upsetting operation. Fig. 5is a cross-section of the bar before the upsetting. Fig. 6 is acrosssection through the machine with the bar in place before theupsetting. Fig. 7 is a corresponding section after the upsetting. Fig.8is a cross-sectionthrough the eye as it comes from the machine, andFig. 9 is a cross-section through the same part after the subsequenthammering.

Similar letters of reference indicate corresponding parts in all thefigures where they occur.

It will be understood that the parts not fully here shown or describedmay be of any ordinary or suitable construction.

The general character of this machine corresponds with that set forth inthe said Patent No. 328,290, of October 13, 1885.

As in the previous patent referred to, A indicates the stationary partor anvil, and B the part which is strongly moved longitudinally, certainportions of this part being designated, when necessary, by additionalmarks, as B B The extension B sliding on the bed presents its upper faceto serve as the part which shapes the lower surface of the eye.-

0 is the removable top piece, the under surface of which shapes theupper face of the eye.

In the previous patent referred to the upper surface of B and the lowersurface of O are held at a distance apart considerably greater than thethickness of the original bar which is being treated. In the act ofupsetting the metal is thickened until this increased space is filled.This leaves the eye thicker than the main body of the bar, whichthickness is subsequently reduced by hammering until the eye is of thesame thickness as the main body.

In the present improved machine we provide a straight ridge, of smoothlyrounded section extending longitudinally along the center of the face ofO, which shapes the upper side of the eye. A similar ridge, similarlymarked, also extends longitudinally along the face of 13 which shapesthe lower side of the eye. It will now be understood that eachlongitudinal ridge imprints itself in the eye as the latter thickens.\Ve have ascertained by experiment that the thickening always commencesand progresses to a sufficient extent to enable the metal 'to getstrongly hold of the ridge before any appreciable tendency to lateralbuckling is encountered.

The success of this invention depends upon the fact that the thickeningiron of the eye will be guided by the longitudinal ridge and sustainedagainst lateral deflection, thus insuring that the operation results inan almost mathematically parallel movement and the practically uniformthickening of both edges and all parts of the eye, excepting,always,theportion where the ridge is presented and a corresponding groove isformed. The depth of the ridges is a little less than the increasedspace provided for the thickening of the bar.

The part B, which forms the abutting surface to thrust against the endof the bar m, is

grooved to receive the ridge which is on the top piece, 0, and is, inthe act of upsetting, caused to move longitudinally therein.

The increased space provided for the thickening of the eye in the act ofupsetting may be all above the general plane of the bar, as in thepatent referred to of October, 1885; or it may be half above and halfbelow. Ve prefer the latter construction, and have so represented it. Ineither case the ridge on the lower surface of 13 does not involve anydifficulty. The ridges produce no groove which will not be readilyremoved by the hammering in the subsequent treatment. \Vhen we sink thesurface of B so as to distribute the thickening of the eye on the twofaces of the bar, the shifting of the position of the parts in the actof upsetting allows the neck or that part of the bar adjacent to the eyeto be thickened to the same extent. The ridge on the part B alsoproduces its groove along that part of the bar; but this is of noconsequence. The hammering in finishing the work flattens this part ofthe bar equally with the rest and erases the groove. It is importantthat the ridges shall be rounded. \Ve prefer the section shown.

XVhen only one ridge is used, we prefer that the cavity in which the eyeis upset shall be adjusted accordingly-that is to say, that the spacefor the thickening of the bar shall be all on that face of the eye wherethe ridge is presented, and where, consequently, the groove is to beformed.

\Ve claim as our invention 1. In a machine for upsetting eyebars, thelongitudinal ridge or ridges in the interior of theinclosing-die,arranged to serve as herein specified.

2. The ramming or upsetting head B,grooved longitudinally to receive theridge in combination with the top piece, 0, having the longitudinalridge arranged to serve as herein specified.

In testimony whereof we have hereunto set our hands, at Paterson, NewJersey, this 15th day of December, 1885, in the presence of twosubscribing witnesses.

XVATTS COOKE. DANIEL GARLOUGH.

\Vitnesses: I

J. H. BLANNETT, lVEsLEY BUonLEY.

